The Edge fins are the ultimate speed training fins, engineered to do it all. Through extensive testing at the FINIS Stroke Lab, the Edge fins were designed to optimize training without interrupting a natural kick cycle or compromising on comfort. The combination of 100% silicone and trademarked Smart Finª Technology reinforces a proper kick at high speeds, builds cardiovascular endurance and activates key muscle groups for a propulsive up-kick.

The Edge fins are designed with a slightly narrow foot pocket to ensure a secure and comfortable fit. Users with a wide or long arched foot may prefer to size up. Example: USA Men's size 10 -11 foot that is wide (D & up) or has a long arch may want to size up to the USA Men's size 11-13 (XL).